All of lore.kernel.org
 help / color / mirror / Atom feed
From: Jeff Darcy <jdarcy@redhat.com>
To: Samuel Just <sam.just@inktank.com>
Cc: Yehuda Sadeh <yehuda@inktank.com>,
	ceph-devel <ceph-devel@vger.kernel.org>,
	gluster-devel@gluster.org
Subject: Re: RADOS translator for GlusterFS
Date: Mon, 5 May 2014 13:38:16 -0400 (EDT)	[thread overview]
Message-ID: <1666953774.790843.1399311496408.JavaMail.zimbra@redhat.com> (raw)
In-Reply-To: <CA+4uBUaOWEwpet3dr1mzYQtr_Xju8a3aCgFAf4BCu22WGQ+aZg@mail.gmail.com>

> One important caveat is that rados objects should be limited in size
> (4MB for rbd blocks), so you'll want to chunk files somewhere before
> rados.

OK, that's going to make life interesting.  How dire are the results
of not chunking like this?  Is it just that the data won't be
distributed across multiple OSDs and therefore you'll only get one
OSD's worth of throughput?  Or is it something worse?  There might
be a way that we can use the GlusterFS striping translator on top
of the RADOS translator, but since it currently sits one level lower
(still above replication but below distribution) there might be some
issues there.

  reply	other threads:[~2014-05-05 17:38 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <980181538.654650.1399300829103.JavaMail.zimbra@redhat.com>
2014-05-05 15:21 ` RADOS translator for GlusterFS Jeff Darcy
2014-05-05 15:37   ` Dan van der Ster
2014-05-05 16:39   ` Yehuda Sadeh
2014-05-05 17:08     ` Jeff Darcy
2014-05-05 17:30       ` Samuel Just
2014-05-05 17:38         ` Jeff Darcy [this message]
     [not found]           ` <1666953774.790843.1399311496408.JavaMail.zimbra-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-05-05 17:46             ` Samuel Just
2014-05-05 18:07               ` Jeff Darcy
2014-05-05 18:23                 ` Samuel Just
     [not found]                 ` <324933830.809209.1399313264579.JavaMail.zimbra-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-05-05 20:25                   ` Sebastien Ponce
     [not found]   ` <355696287.706122.1399303290204.JavaMail.zimbra-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-05-05 16:41     ` John Spray
2014-05-05 16:43   ` John Spray

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1666953774.790843.1399311496408.JavaMail.zimbra@redhat.com \
    --to=jdarcy@redhat.com \
    --cc=ceph-devel@vger.kernel.org \
    --cc=gluster-devel@gluster.org \
    --cc=sam.just@inktank.com \
    --cc=yehuda@inktank.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.